Given the task definition and input, reply with output. Given a text, write a compressed version of it in a single sentence.

The giant Batu Caves are a popular excursion 45 minutes' drive north of town just off the Ipoh Road. Set in limestone cliffs hidden in the jungle, they were "discovered" in 1878 by a group of explorers, including the American naturalist William Hornaday.

The giant Batu Caves are a popular excursion 45 minutes' drive north of town. Set in limestone cliffs hidden in the jungle, they were "discovered" in 1878 by a group of explorers..